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* Post 3.10.0a1Pablo Galindo2020-10-051-1/+1
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* Python 3.10.0a1v3.10.0a1Pablo Galindo2020-10-051-2/+2
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* bpo-41936. Remove macros Py_ALLOW_RECURSION/Py_END_ALLOW_RECURSION (GH-22552)Serhiy Storchaka2020-10-052-10/+0
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* bpo-41692: Deprecate PyUnicode_InternImmortal() (GH-22486)Victor Stinner2020-10-021-1/+4
| | | | The PyUnicode_InternImmortal() function is now deprecated and will be removed in Python 3.12: use PyUnicode_InternInPlace() instead.
* bpo-41842: Add codecs.unregister() function (GH-22360)Hai Shi2020-09-281-0/+8
| | | | Add codecs.unregister() and PyCodec_Unregister() functions to unregister a codec search function.
* bpo-41875: Use __builtin_unreachable when possible (GH-22433)Dong-hee Na2020-09-281-1/+3
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* bpo-30155: Add macros to get tzinfo from datetime instances (GH-21633)Zackery Spytz2020-09-231-0/+8
| | | | Add PyDateTime_DATE_GET_TZINFO() and PyDateTime_TIME_GET_TZINFO() macros.
* bpo-41834: Remove _Py_CheckRecursionLimit variable (GH-22359)Victor Stinner2020-09-231-2/+0
| | | | | | | | | | Remove the global _Py_CheckRecursionLimit variable: it has been replaced by ceval.recursion_limit of the PyInterpreterState structure. There is no need to keep the variable for the stable ABI, since Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() were not usable in Python 3.8 and older: these macros accessed PyThreadState members, whereas the PyThreadState structure is opaque in the limited C API.
* Py_IS_TYPE() macro uses Py_TYPE() (GH-22341)Victor Stinner2020-09-221-1/+1
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* bpo-41756: Introduce PyGen_Send C API (GH-22196)Vladimir Matveev2020-09-191-0/+15
| | | | | | | | | | | | | The new API allows to efficiently send values into native generators and coroutines avoiding use of StopIteration exceptions to signal returns. ceval loop now uses this method instead of the old "private" _PyGen_Send C API. This translates to 1.6x increased performance of 'await' calls in micro-benchmarks. Aside from CPython core improvements, this new API will also allow Cython to generate more efficient code, benefiting high-performance IO libraries like uvloop.
* bpo-41746: Add type information to asdl_seq objects (GH-22223)Pablo Galindo2020-09-163-144/+285
| | | | | | | | | | | | | * Add new capability to the PEG parser to type variable assignments. For instance: ``` | a[asdl_stmt_seq*]=';'.small_stmt+ [';'] NEWLINE { a } ``` * Add new sequence types from the asdl definition (automatically generated) * Make `asdl_seq` type a generic aliasing pointer type. * Create a new `asdl_generic_seq` for the generic case using `void*`. * The old `asdl_seq_GET`/`ast_seq_SET` macros now are typed. * New `asdl_seq_GET_UNTYPED`/`ast_seq_SET_UNTYPED` macros for dealing with generic sequences. * Changes all possible `asdl_seq` types to use specific versions everywhere.
* bpo-41631: _ast module uses again a global state (#21961)Victor Stinner2020-09-151-0/+1
| | | | | | | | | | | | | | | | | Partially revert commit ac46eb4ad6662cf6d771b20d8963658b2186c48c: "bpo-38113: Update the Python-ast.c generator to PEP384 (gh-15957)". Using a module state per module instance is causing subtle practical problems. For example, the Mercurial project replaces the __import__() function to implement lazy import, whereas Python expected that "import _ast" always return a fully initialized _ast module. Add _PyAST_Fini() to clear the state at exit. The _ast module has no state (set _astmodule.m_size to 0). Remove astmodule_traverse(), astmodule_clear() and astmodule_free() functions.
* bpo-41428: Implementation for PEP 604 (GH-21515)Maggie Moss2020-09-091-0/+17
| | | | | See https://www.python.org/dev/peps/pep-0604/ for more information. Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* bpo-41617: Fix pycore_bitutils.h to support clang 3.0 (GH-22042)Victor Stinner2020-09-011-4/+6
| | | __builtin_bswap16() is not available in LLVM clang 3.0.
* bpo-41324 Add a minimal decimal capsule API (#21519)Stefan Krah2020-08-101-0/+180
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* bpo-41098: Doc: Add missing deprecated directives (GH-21162)Inada Naoki2020-08-071-2/+8
| | | | PyUnicodeEncodeError_Create has been deprecated with `Py_DEPRECATED` macro. But it was not documented.
* bpo-41463: Generate information about jumps from 'opcode.py' rather than ↵Mark Shannon2020-08-041-0/+22
| | | | | duplicating it in 'compile.c' (GH-21714) Generate information about jumps from 'opcode.py' rather than duplicate it in 'compile.c'
* bpo-40939: Remove even more references to the old parser (GH-21642)Lysandros Nikolaou2020-07-271-9/+0
| | | Automerge-Triggered-By: @lysnikolaou
* bpo-41366: Fix clang warning for sign conversion (GH-21592)Henry Schreiner2020-07-231-1/+1
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* bpo-40941: Unify implicit and explicit state in the frame and generator ↵Mark Shannon2020-07-172-7/+28
| | | | | | | objects into a single value. (GH-20803) * Merge gen and frame state variables into one. * Replace stack pointer with depth in PyFrameObject. Makes code easier to read and saves a word of memory.
* bpo-36346: Make using the legacy Unicode C API optional (GH-21437)Serhiy Storchaka2020-07-101-1/+3
| | | | Add compile time option USE_UNICODE_WCHAR_CACHE. Setting it to 0 makes the interpreter not using the wchar_t cache and the legacy Unicode C API.
* Revert "bpo-40170: PyType_HasFeature() now always calls PyType_GetFlags() ↵Victor Stinner2020-07-081-2/+10
| | | | | (GH-19378)" (GH-21390) This partially reverts commit 45ec5b99aefa54552947049086e87ec01bc2fc9a.
* bpo-29778: test_embed tests the path configuration (GH-21306)Victor Stinner2020-07-071-0/+1
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* bpo-41165: Deprecate PyEval_ReleaseLock() (GH-21309)Inada Naoki2020-07-061-1/+5
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* bpo-36346: Undeprecate private function _PyUnicode_AsUnicode(). (GH-21336)Serhiy Storchaka2020-07-051-1/+1
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* Uncomment Py_DEPRECATED for Py_UNICODE APIs (GH-21318)Inada Naoki2020-07-051-2/+2
| | | | | PyUnicode_EncodeDecimal and PyUnicode_TransformDecimalToASCII are deprecated since Python 3.3. But Py_DEPRECATED(3.3) was commented out.
* bpo-1635741: Release Unicode interned strings at exit (GH-21269)Victor Stinner2020-07-011-0/+1
| | | | | | | * PyUnicode_InternInPlace() now ensures that interned strings are ready. * Add _PyUnicode_ClearInterned(). * Py_Finalize() now releases Unicode interned strings: call _PyUnicode_ClearInterned().
* bpo-36346: Prepare for removing the legacy Unicode C API (AC only). (GH-21223)Serhiy Storchaka2020-06-301-0/+5
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* bpo-41123: Remove PyUnicode_AsUnicodeCopy (GH-21209)Inada Naoki2020-06-301-8/+0
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* bpo-23427: Add sys.orig_argv attribute (GH-20729)Victor Stinner2020-06-291-6/+8
| | | | | | | Add sys.orig_argv attribute: the list of the original command line arguments passed to the Python executable. Rename also PyConfig._orig_argv to PyConfig.orig_argv and document it.
* bpo-41123: Remove PyLong_FromUnicode() (GH-21204)Inada Naoki2020-06-291-2/+0
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* bpo-41123: Remove PyUnicode_GetMax() (GH-21192)Inada Naoki2020-06-291-3/+0
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* bpo-41123: Remove Py_UNICODE_str* functions (GH-21164)Inada Naoki2020-06-271-37/+0
| | | They are undocumented and deprecated since Python 3.3.
* bpo-41103: Remove old buffer protocol support (#21117)Inada Naoki2020-06-251-47/+0
| | | They are deprecated since Python 3.0.
* bpo-40521: Optimize PyBytes_FromStringAndSize(str, 0) (GH-21142)Victor Stinner2020-06-252-2/+3
| | | | | | | | | | | | | | | | Always create the empty bytes string singleton. Optimize PyBytes_FromStringAndSize(str, 0): it no longer has to check if the empty string singleton was created or not, it is always available. Add functions: * _PyBytes_Init() * bytes_get_empty(), bytes_new_empty() * bytes_create_empty_string_singleton() * unicode_create_empty_string_singleton() _Py_unicode_state: rename empty structure member to empty_string.
* bpo-40521: Always create the empty tuple singleton (GH-21116)Victor Stinner2020-06-241-0/+1
| | | | | | | | | | | Py_InitializeFromConfig() now always creates the empty tuple singleton as soon as possible. Optimize PyTuple_New(0): it no longer has to check if the empty tuple was created or not, it is always creatd. * Add tuple_create_empty_tuple_singleton() function. * Add tuple_get_empty() function. * Remove state parameter of tuple_alloc().
* bpo-40521: Make Unicode latin1 singletons per interpreter (GH-21101)Victor Stinner2020-06-241-0/+3
| | | | | | | | | Each interpreter now has its own Unicode latin1 singletons. Remove "ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS" and "ifdef LATIN1_SINGLETONS": always enable latin1 singletons. Optimize unicode_result_ready(): only attempt to get a latin1 singleton for PyUnicode_1BYTE_KIND.
* bpo-40521: Make empty Unicode string per interpreter (GH-21096)Victor Stinner2020-06-232-1/+3
| | | Each interpreter now has its own empty Unicode string singleton.
* bpo-40521: Make MemoryError free list per interpreter (GH-21086)Victor Stinner2020-06-232-2/+10
| | | | | | | Each interpreter now has its own MemoryError free list: it is not longer shared by all interpreters. Add _Py_exc_state structure and PyInterpreterState.exc_state member. Move also errnomap into _Py_exc_state.
* bpo-40521: Empty frozenset is no longer a singleton (GH-21085)Raymond Hettinger2020-06-232-3/+0
| | | | | | | | | * Revert "bpo-40521: Make the empty frozenset per interpreter (GH-21068)" This reverts commit 261cfedf7657a515e04428bba58eba2a9bb88208. * bpo-40521: Empty frozensets are no longer singletons * Complete the removal of the frozenset singleton
* bpo-40521: Make bytes singletons per interpreter (GH-21074)Victor Stinner2020-06-232-1/+7
| | | | | | Each interpreter now has its own empty bytes string and single byte character singletons. Replace STRINGLIB_EMPTY macro with STRINGLIB_GET_EMPTY() macro.
* bpo-40521: Make the empty frozenset per interpreter (GH-21068)Victor Stinner2020-06-232-1/+3
| | | Each interpreter now has its own empty frozenset singleton.
* bpo-40521: Make dict free lists per-interpreter (GH-20645)Victor Stinner2020-06-233-15/+26
| | | | | | | | | | | Each interpreter now has its own dict free list: * Move dict free lists into PyInterpreterState. * Move PyDict_MAXFREELIST define to pycore_interp.h * Add _Py_dict_state structure. * Add tstate parameter to _PyDict_ClearFreeList() and _PyDict_Fini(). * In debug mode, ensure that the dict free lists are not used after _PyDict_Fini() is called. * Remove "#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS".
* bpo-41078: Add pycore_list.h internal header file (GH-21057)Victor Stinner2020-06-222-1/+20
| | | | | * Move _PyList_ITEMS() to pycore_list.h. * The C extension "_heapq" is now built with Py_BUILD_CORE_MODULE macro defined to access the internal C API.
* bpo-41078: Rename pycore_tupleobject.h to pycore_tuple.h (GH-21056)Victor Stinner2020-06-221-3/+4
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* bpo-40939: Rename PyPegen* functions to PyParser* (GH-21016)Lysandros Nikolaou2020-06-213-62/+19
| | | | | | Rename PyPegen* functions to PyParser*, so that we can remove the old set of PyParser* functions that were using the old parser.
* bpo-40939: Remove the old parser (Part 2) (GH-21005)Lysandros Nikolaou2020-06-207-366/+0
| | | Remove some remaining files and Makefile targets for the old parser
* bpo-36346: Make unicodeobject.h C89 compatible (GH-20934)Inada Naoki2020-06-171-1/+2
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* bpo-35059: Enhance _PyObject_GC_TRACK() macros (GH-20931)Victor Stinner2020-06-171-14/+34
| | | | | * Rename _PyObject_GC_TRACK_impl() to _PyObject_GC_TRACK() * Rename _PyObject_GC_UNTRACK_impl() to _PyObject_GC_UNTRACK() * Omit filename and lineno parameters if NDEBUG is defined.
* bpo-36346: Add Py_DEPRECATED to deprecated unicode APIs (GH-20878)Inada Naoki2020-06-171-23/+23
| | | | Co-authored-by: Kyle Stanley <aeros167@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>
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